This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.


The grid-column-gap CSS property specifies the gutter between grid columns.

The effect is as though the affected grid lines acquired width: the grid track between two grid lines is the space between the gutters that represent them. For the purpose of track sizing, each gutter is essentially treated as an extra track of the specified length. Negative values are invalid.

Initial value0
Applies togrid containers
Percentagesyes, as the dimension of the element
Computed valuethe percentage as specified or the absolute length
Animation typea length
Canonical orderthe unique non-ambiguous order defined by the formal grammar


/* <length> values */
grid-column-gap: 20px;
grid-column-gap: 1em;
grid-column-gap: 3vmin;
grid-column-gap: 0.5cm;

/* <percentage> value */
grid-column-gap: 10%;

/* Global values */
grid-column-gap: inherit;
grid-column-gap: initial;
grid-column-gap: unset;


Is the width of the gutter separating the grid columns.
Is the width of the gutter separating the grid columns, relative to the dimension of the element.

Formal syntax


<length-percentage> = <length> | <percentage>


HTML Content

<div id="grid">

CSS Content

#grid {
  display: grid;
  height: 100px;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: 100px;
  grid-column-gap: 20px;

#grid > div {
  background-color: lime;


Specification Status Comment
CSS Grid Layout
The definition of 'grid-column-gap' in that specification.
Candidate Recommendation Initial definition

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Edge Opera Safari
Basic support 29.0[1] 40.0 (40.0)[2] No support[3] No support[3] 28.0[1] Nightly build-webkit
Feature Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support No support No support No support[3] No support No support

[1] Implemented behind the experimental Web Platform features flag in chrome://flags.

[2] Implemented behind the preference layout.css.grid.enabled, defaulting to false.

[3] Internet Explorer implements an older version of the specification, which didn't define this property.

See also

Document Tags and Contributors

 Contributors to this page: teoli, rolfedh, Sebastianz
 Last updated by: teoli,